Home / 774,170,440.80-1,159,663,136.40-391,433,647.20

Finding the Fourth Proportional to 774,170,440.80, 1,159,663,136.40 and 391,433,647.20

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Solution

The fourth proportional to 774,170,440.80, 1,159,663,136.40 and 391,433,647.20 is: 586,345,263.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,170,440.80 : 1,159,663,136.40 = 391,433,647.20 : x
  2. Step 2: Convert to fraction form
    774,170,440.80/1,159,663,136.40 = 391,433,647.20/x
  3. Step 3: Cross multiply
    774,170,440.80x = 1,159,663,136.40 × 391,433,647.20
  4. Step 4: Simplify right side
    774,170,440.80x = 453,931,171,004,443,072
  5. Step 5: Solve for x
    x = 453,931,171,004,443,072/774,170,440.80
  6. Step 6: Final answer
    x = 586,345,263.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.